Peter Lind Hayes

August Zabladowski

Mary Healy

Heloise Collins

Hans Conried

Dr. Terwilliker

Tommy Rettig

Bartholomew Collins

Noel Cravat

Sgt. Lunk

Robert Heasley

Uncle Judson

Jack Heasley

Uncle Whitney

George Chakiris

Dancer

Alan Aric

Elevator Operator (uncredited)